Rocks falling from a cliff above Moa Bone Point Cave at Redcliffs following a dynamite charge explosion in an attempt to dislodge a rock outcrop in the area.
A firefighter inspects the damage after a hot water cylinder exploded in a Hereford Street flat.
Police inspecting the scene of a suspected bomb blast outside Canterbury Tales bookshop in the Village Gate Shopping Mall in Merivale.
The window of the Canterbury Tales bookshop in the Village Gate Shopping Mall in Merivale, after a suspected bomb blast.
The damaged remains of a boat after it exploded at Scarborough boat ramp. The cause of the explosion was unknown.
The remains of a Labour Department explosives store in Cass Bay which exploded.
A detective and a post office official examine an exploded postal box at the Walker Street post office.
The Walker Street post office where a bomb was placed in the postal box.
Fire prevention officer, J. F. Hegarty inspecting the fire damage following a fatal explosion at Verkerks Butchery at 196 Armagh Street.
Employees of Verkerks Butchery, Stephen Katsaras (left), Andrew Edwards and Vincent Tikao, clean up after a fatal explosion at their site at 196 Armagh Street.
Firefighters and crowds outside Nu-Way Dry Cleaners in Colombo Street near the intersection with Cashel Street following an explosion.
Firefighters attending to an explosion at Verkerks Butchers at 196 Armagh Street on the corner with Manchester Street.
Firefighters hosing down the number 6 petrol storage tank at Lyttelton after it exploded as a result of faulty equipment.
Hydraulic cranes being used to remove the perimeter of the lid of the number 6 petrol storage tank at Lyttelton after it exploded as a result of faulty equipment.
The damaged number 6 petrol storage tank at Lyttelton after it exploded as a result of faulty equipment.
The number 6 petrol storage tank at Lyttelton after it exploded as a result of faulty equipment.
Remains of a damaged building at Anderson Limited after an explosion of a gas cylinder.
Police guarding the scene of an acetylene tank explosion at Anderson Heavy Ferrous Foundry Centre on Curries Road, Woolston. The tank exploded as it was being unloaded from a flat deck truck.
Portrait of Harry Caulfield, worker at Bitumac Roofing Limited.
Views of the damage caused by the explosion and fire that occurred in Sydenham.
Damage to the bitumen delivery and blending tank at Shell Oil Company's bulk bitumen installation in Lyttelton, after it exploded.
A hydraulic platform is used to place dynamite charges at a cliff near Shag Rock and Redcliffs.
Aftermath of explosion in the booster section of of the Christchurch Gas Company gas works.